Results 81 to 90 of about 143,859 (319)

Functional traits of riparian trees in the lower Fitzroy River, Western Australia

open access: yesEcohydrology, Volume 16, Issue 1, January 2023., 2023
Abstract Riparian trees are critically important for maintaining the ecological function of freshwater ecosystems. Globally, anthropogenic changes to water regimes are impacting the health and distribution of riparian trees. Understanding the physiological constraints on the distribution of riparian tree species in relation to the water regime is ...
Caroline A. Canham   +6 more
wiley   +1 more source

Solving Groundwater Flow Equations Using Gradually Varied Functions [PDF]

open access: yesarXiv, 2012
Finite difference method and finite element method are popular methods for solving groundwater flow equations. This paper presents a new method that uses gradually varied functions to solve such equation. In this paper, we have established a mathematical model based on gradually varied functions for groundwater data volume reconstruction.
arxiv  

Modeling groundwater flow on MPPs [PDF]

open access: yesProceedings of Scalable Parallel Libraries Conference, 2002
The numerical simulation of groundwater flow in three-dimensional heterogeneous porous media is examined. To enable detailed modeling of large contaminated sites, preconditioned iterative methods and massively parallel computing power are combined in a simulator called PARFLOW. After describing this portable and modular code, some numerical results are
Ashby, S. F.   +3 more
openaire   +2 more sources

A Needle in a Haystack: Landscape Survey and Archaeological Detection Experiments in Apalachee Bay

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT This paper presents the results of a pilot landscape‐scale seismic survey undertaken in Apalachee Bay, Florida, across a submerged landscape that contains dozens of Pre‐Contact sites. In addition to the goals of improving the geophysical and remote sensing ground model for this submerged landscape, the survey also sought to undertake the first
Simon Fitch, Jessica Cook Hale
wiley   +1 more source

Regional‐scale partitioning of transmission losses and groundwater recharge using satellite estimates of actual evapotranspiration in an arid environment

open access: yesEcohydrology, Volume 16, Issue 1, January 2023., 2023
Abstract Rivers in arid regions often rely on flow generated from wetter regions upstream, leading to high transmission losses of downstream flows. These transmission losses support a range of ecosystems, but partitioning the volume of the transmission losses across the floodplain, riparian zone and in‐channel is difficult.
Russell S. Crosbie   +2 more
wiley   +1 more source

Multi-Agent System for Groundwater Depletion Using Game Theory [PDF]

open access: yesarXiv, 2016
Groundwater is one of the most vital of all common pool resources throughout the world. More than half of groundwater is used to grow crops. This research models groundwater depletion patterns within a multi-agent system framework. Irrigators are modeled as agents in the multi-agent system.
arxiv  

Quantization‐Based Latin Hypercube Sampling for Dependent Inputs With an Application to Sensitivity Analysis of Environmental Models

open access: yesApplied Stochastic Models in Business and Industry, EarlyView.
ABSTRACT Numerical models are essential for comprehending intricate physical phenomena in different domains. To handle their complexity, sensitivity analysis, particularly screening is crucial for identifying influential input parameters. Kernel‐based methods, such as the Hilbert‐Schmidt Independence Criterion (HSIC), are valuable for analyzing ...
Guerlain Lambert   +2 more
wiley   +1 more source

Isotope characterization of shallow aquifers in the Horombe region, South of Madagascar [PDF]

open access: yesarXiv, 2012
The present study deals with the problem of evaluation of the recharge mechanism and the characterization of the groundwater flow system in the basement shallow aquifer, which is one of the groundwater resource in the semi-arid South region of Madagascar.
arxiv  

Autogenous self‐healing of concrete: Experimental design and test methodsA review

open access: yesEngineering Reports, Volume 5, Issue 1, January 2023., 2023
Concrete exhibits an intrinsic ability to heal cracks, defined as “autogenous self‐healing.” However, despite code restrictions, autogenous self‐healing of concrete shows limited effectiveness in practice. This indicates the need for further research to provide engineers with reliable design rules.
Daniel Lahmann   +2 more
wiley   +1 more source

Invisible Labor and the “Ghost Particle”: Underground Physics at the Kolar Gold Fields**

open access: yesBerichte zur Wissenschaftsgeschichte, EarlyView.
Abstract When cosmic rays—high‐energy particles from outer space—encounter the Earth's atmosphere, they produce particles called neutrinos. To detect them, physicists go underground inside deep mines where the overlying rock can filter out the cosmic‐ray background radiation.
Nithyanand Rao
wiley   +1 more source

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